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Acquisitions and Dispositions - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Jun. 30, 2017
Dec. 31, 2016
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Apr. 29, 2016
Business Acquisition [Line Items]                  
Business acquisition share price     $ 23.00     $ 23.00      
Stock-based compensation expense     $ 6,207   $ 10,516 $ 14,989 $ 14,668    
Total proceeds from sale of business unit, net of cash sold $ 72,509         72,509      
Pre-tax gain $ 74,856   74,856     74,856      
Net revenues     480,757   325,861 917,910 509,542    
Data Analytics Solutions Business [Member]                  
Business Acquisition [Line Items]                  
Net revenues               $ 12,700  
Minority Interest in Private Company [Member]                  
Business Acquisition [Line Items]                  
Investments in minority interest   $ 9,300              
Impairment charges       $ 5,000       $ 5,000  
Newport [Member]                  
Business Acquisition [Line Items]                  
Business acquisition share price                 $ 23.00
Fair value write-up of acquired finished goods inventory     15,090     15,090      
Incremental cost of sales charge         10,119   10,119    
Fair value write-up of acquired property, plant and equipment     $ 36,242     $ 36,242      
Compensation expense         6,631   6,631    
Stock-based compensation expense         $ 3,334   $ 3,334